Cow-milker



B.. D. ROTH. 00W MXLKER (No Model.)

No. 603,049. Patented Apr. 26,1898.

v w 5. n...

UNITED STATES PATnNr rrrcn.

REUBEN D. ROTH, OF MUMMASBURG, PENNSYLVANIA.

COW-MILKER.

SPECIFICATION forming part of Letters Patent No. 603,049, dated April 2e, 189e.

Application neasepamar 14,1897. serial No. 651,588. (remodel.)

To all whom t may concern,.-

Be it known that I, REUBEN D. ROTH, residing at Mummasburg, in the county of Adams and State of Pennsylvania, have invented a new and useful Cow-Milker, of which the followng is a specification.

My invention is in the nature of a device for milking cows.

The object of my invention is to provide a cheap, simple, and durable cow-milking device to be operated by one hand, whereby the operator may use two milliers at the same time.

A further object of my invention is to provide a cheap, simple, and durable cow-milking device in which the pressure is exerted upon the teat by the hand of the operator, and the pressure devices withdrawn from contact with the teat by means of springs.

A further object of myinvention is to provide a combination device in which the milking operation is performed by the pressure upon the teat of two series of short flexible cylinders arranged in parallel lines.

With these objects in View my invention consists in a cow-milking device provided with flexible or yielding pressure devices for contact with the teat, forced toward each other upon the teat by the pressure of the hand of the operator upon spring-separated blocks clamped in the hand and withdrawn therefrom by means of an improved arrangement of springs. l

My invention further consists in a cowmilking device comprising two parallel series of short flexible cylinders adapted to be pressed against the teat, each of the cylinders being supported by an inwardly-coiled spring, the ends of which pass backwardly and are connected to two pressure-blocks to be pressed together by the hand of the operator.

My invention further consists in the improved construction, arrangement, and combination of parts hereinafter fully described and afterward specifically pointed out in the claims.

In order to enable others skilled in the art to which my invention most nearly appertains to maire and use the same, I will now proceed to describe its construction and operation, having reference to the accompanyl ing drawings, forming a part of this specification, in which- Figure l is a perspective view of a millier constructed in accordance with inyinvention. Fig. 2 is a vertical longitudinal section through the same. Fig. 3 is a longitudinal section on K a plane at right angles to Fig. 2, the pressurecylinders being omitted. Fig. 4 is a fragmentary detail View illustrating one of the pressure-cylinders and the incased spring. Fig. 5 is a detail perspective view of a slightlymodied construction.

Like letters of reference mark the same parts wherever they occur in the various ligures of the drawings.

Referring to the drawings by letters, A, B, C, and D are short sections of rubber tubing, in which are incased spiral springs E, the ends F and Gr of which are bent at right angles to the cylinders parallel to each other for a short distance, when they are again coiled to form springs F' G', and again continued at F2 and G2 in a slightly-curved line through a block H, in which they are rigidly secured.

The foregoing description is particularlyl applied by the letters 'oi' reference to the'section A, and it has spring connections tothe block H; but all the outersections B, C, and D have similar springs, with the wires thereof carried in the same way and secured in the same manner to the block II. Another series of short rubber tubes A, B, C, and D are normally held parallel with the series A, B, C, and D at a proper distance from said series to permit the teat of the cow to be passed between the two series. Coiled springs I are incased within this second series of tribes, the wires of which extend rearwardly at I', passing through the springs F and G' and formed into springs I2, which are coiled around the wires F2 and G2 and are then passed back at I2, through perfo rations in the block H, to and through block K, to which they are rigidly secured.

Stili rods L are secured in the block Kand proj ect forward thro ugh openings in the block Hhaving coiled around them between the two blocks springs IWI, which serve t0 hold the blocks at a certain distance apart, and as a consequence they produce the saine separating eifect upon the series of cylinders or tubes. Cross connecting-wires N serve to prevent the IOO spreading of the wires before described when considerable pressure is brought to bear upon them.

It may be sometimes desired to omit the rods L, in which case the springs M may be coiled around the wires I3 between the two blocks, by which the same eifect will be produced.

In the operation of my invention the blocks H and K are grasped between the ends ofthe fingers and the back portion of the palm of the hand of the operator and adjusted in a position to bring the teat of the cow between the two series of pressure-cylinders. Then by closing' the hand without downward pressure the operator will cause the cylinders to be pressed against opposite sides of the teat and the milk to be squeezed therefrom into a suitably-arranged pail. By releasing the pressure on the blocks I-I and K the series of pressure-cylinders are again separated by the action of the springs, ready again to be pressed to press out further accumulations of milk fromthe teat. These operations are continued until the cow is milked dry, and from the construction and arrangement of the device I am enabled to milk a cow entirely dry, even to the stripping atthe close of the operation.

While I have described the cylinders as composed of two short series of rubber tubing, it is obvious that theymay be constructed of analogous material, provided only that they shall have sufficient rigidity Vto enable the proper pressure to be brought to bear upon the teat, and at the same time be sufficiently yielding and flexible to prevent injury to the teat from overpressure.

While I have illustrated and described the best known means for carrying out my invention, I desire it to be understood that I do not restrict myself to the exact forms and I constructions shown, but hold that any slight variation from such forms and constructions which might suggest itself to the ordinary mechanic will properly fall within the limit and scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a cow-milker, the combination of a double series of yielding cylinders arranged a short distance apart in vertical lines, a pair of blocks adapted to be grasped in the hand of the operator, wires extending from the outer series to the first block, wires extending from the inner Vseries through the first block and to the second block, and springs between the blocks to normally hold them and the series of cylinders apart, substantially as shown and described.

2. In a cow-milker, the combination of two series of short sections of fiexible tubingarranged in vertical lines, two blocks adapted to be pressed together by the hand of the operator, a spiral spring in each of the sections of the tubing, comprising the outer series having its ends extended and secured to the outer block, a spiral spring in each of the sections of tubing comprising the inner series having its wires extended through the first block and secured to the second block, and springs for normally holding the blocks and series of sections of tubing apart, substan tially as shown and described.

3. In a cow-millier, the combination of a series of short iiexible cylinders arranged in a vertical line, two blocks adapted to be pressed together by the hand of the operator, a spiral spring in each of the iiexible cylinders, the ends thereof being extended to and secured to the first block before being coiled to form a spring intermediate of the cylinder and the block, a Vsecond series of exible cylinders arranged in a line parallel with the first-named series, a spiral spring in each of said cylinders, its ends being bent backward through the springs in the wires before described and coiled around said wires in the form of springs, and passing through the first block and secured to the second block, substantially as shown and described.

4. In a cow-milker, the combination of two series of flexible cylinders arranged in vertical lines, two blocks adapted to be pressed together by the hand of the operator, and spiral springs in each cylinder of each series, the ends whereof are extended toward the blocks, the extension of the springs in the iirst series being connected to the iirst block and the extension of the springs of the second series being passed through the first block and connected to the second, and springs encircling the extension of the second series of blocks to normally force them apart, substantially as shown and described.

REUBEN D. ROTH.

Witnesses:

D. N. DEARD'ORFF, J. H. BEYER. 

